OpenCPN Partial API docs
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comm_navmsg_bus.cpp
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1/**************************************************************************
2 * Copyright (C) 2022 by David Register *
3 * Copyright (C) 2022 Alec Leamas *
4 * *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) any later version. *
9 * *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
14 * *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, see <https://www.gnu.org/licenses/>. *
17 **************************************************************************/
18
26
27void NavMsgBus::Notify(std::shared_ptr<const NavMsg> msg) {
28 std::string key = NavAddr::BusToString(msg->bus) + "::" + msg->GetKey();
29 RegisterKey(key);
30 Observable(*msg).Notify(msg);
31}
32
33void NavMsgBus::RegisterKey(const std::string& key) {
34 {
35 std::lock_guard lock(m_mutex);
36 if (m_active_messages.find(key) == m_active_messages.end())
38 m_active_messages.insert(key);
39 }
40}
41
42NavMsgBus& NavMsgBus::GetInstance() {
43 static NavMsgBus instance;
44 return instance;
45}
46
Common interface for all drivers.
Definition comm_driver.h:65
void Notify() override
Notify all listeners, no data supplied.
The raw message layer, a singleton.
void RegisterKey(const std::string &key)
Register a message type in list the GetActiveMessages() list.
void Notify(std::shared_ptr< const NavMsg > message)
Accept message received by driver, make it available for upper layers.
EventVar new_msg_event
Notified without data when new message type(s) are detected.
The observable notify/listen basic nuts and bolts.
Definition observable.h:100
virtual void Notify()
Notify all listeners about variable change.
Raw messages layer, supports sending and recieving navmsg messages.